Bobbin dyeing method of green ecological fiber blended yarn

Abstract

The invention relates to a bobbin dyeing method of a green ecological fiber blended yarn, belonging to the technical field of spinning yarn dyeing. The method comprises the following steps: spooling yarns in a loose mode, charging in a cage, dyeing for the first time, pre-treating, dyeing for the second time, post-treating, and spooling in a tight mode, wherein a previous treatment is added before the dyeing for the first time, the dyeing for the first time adopts reactive dyes, and the dyeing for the second time adopts acid dyes; and the previous treatment comprises the following steps: after placing the yarns in a dye vat, injecting water and adding assistants to the dye vat while controlling the liquor ratio, heating up, and then preserving heat, wherein the assistants are sodium carbonate and scouring agent. The invention solves the problem that the isochromatic property is poor when different cellulose fibers are placed in one bath, overcomes the problem of the poor isochromatic property of different cellulose fibers, solves the problem that the reactive dyes stain the protein fibers, solves the problem that the isochromatic property is poor when different protein fibers are placed in one bath, has the advantages of simple process step, less environmental pollution, water and energy saving and fiber loss reduction, and can meet requirements for industrial mass production.

Description

technical field [0001] The invention belongs to the technical field of textile yarn dyeing, and in particular relates to a cheese dyeing method of green ecological fiber blended yarn. Background technique [0002] The aforementioned green ecological fiber blended yarn refers to the yarn obtained by blending a variety of natural fibers. At present, the five-in-one green environmental protection and multifunctional ecological fiber blended yarn that is most valued by people is made of this kind of yarn. The clothing and bedding products have ideal environmental protection. The aforementioned five-in-one fiber blended yarn usually constitutes by the following raw materials in weight percentage: lyocell fiber 20%, wool fiber 25%, Dupont fiber 10%, cotton fiber 25% and rabbit down fiber 20%, and these fibers are separately After dyeing, it is dried and mixed (mixed), and then spun to obtain colored green ecological fiber blended yarn. The reason why people call this kind of yar...

AI Technical Summary

Problems solved by technology

Obviously, this dyeing method is only suitable for small-batch production, and the individual dyeing of a single fiber will inevitably cause cumbersome processes, cause greater damage to the environment and increase the consumption of energy and raw materials. In addition, fiber loss and production costs increase. Big

[0010] In fact, people have already recognized the above-mentioned disadvantages of loose fiber dyeing, and are actively exploring effective ways to dye yarns after yarn formation. However, due to the extremely expensive price of such yarns, it is difficult to grasp the same color of different fibers. And the problem of mutual staining between different fibers is difficult to overcome. Therefore, there has neither been a successful literature record nor heard of media reports of progress.